Lamp-burner.



B. P. FOWLER.

LAMP BURNER.

APPLICATION FILED NOV. so, 1908.

Patented July 19, 1910.

1: STATE s PATENT OFFICE- KEENJAMIN F. FOXVLER, F MINNEAPOLIS, MINNESOTA, ASSIGNOB. FIVE-EIGH'IHS T0 E. W. BINGENHEIMER, 0F MINNEAPOLIS, MINNESOTA.

LAMP-BURNER.

season Specification of Letters Patent.

Patented July 19, 1910.

Application filed November 30, 1908. Serial No. 465,018.

venting the discharge of smoke and products of combustion from the lamp chimney.

A further object is to provide a burner of simple, economical construction and one which willpr'ovide a lamp of high candle power and great efficiency, with a comparatively small consumption of oil.

Other objects of the invention will appear from the following detailed description.

My invention consists generally in improved means for regulating the flow of air through the burner.

Further, the invention consists in means for collecting the carbon from the burning wick.

Further the invention consists in improved holders for the chimney.

Further the invention consists in an improved cone inclosing the wick.

Further the invention consists in various constructions and combinations all as hereinafter described and particularly pointed out in the claims.

In. the accompanying drawings, forming part of this specification, Figure 1 is a vertical, sectional view of a lamp burner embodying my invention. Figl 2 is a side view, taken on a line at right angles substantially to the section line of Fig. 1. Fig. 3 is a sectional view on the line XX of Fig. 2. Fig. 4 is a top view of the burner. Fig. 5 is a detailed view partially in section of a modified form of cone.

in the drawing, 2 represents the outer tube inclosing the wick 3 and supporting a cup 4 of ordinary construction having the usual perforations. This cup is provided with a flange 5 supporting a ring 6 held in place on the cup by clips 7 and provided with a seriesof chimney holders, which consist of upwardly projecting arms 8, carrying spring plates 9, which are secured at points intermediate to their ends, to the upper ends of the arms 8 and are adapted to bear at two points on the chimney. When the chimney is placed on the burner, the lower ends of theplates 9 will be forced outwardly and will bear on the base of the chimney with a yielding pressure, thereby securely holding it against accidental displacement. The forcing out of the lower ends of plates 9 will have the elfect of drawing the upper ends thereof inwardly to grip the chimney and hold it in place on the burner. The inner tube 10 is provided with the wick 3 and a sliding, vertically-slotted tube 11 incloses the tube 10. and has points 12 outwardly turned to engage with the wick. The tube 11 is provided with a rack bar 13 on one'side, in engagement with a pinion 14-, mounted on the wick-adjusting device 15. By the rotation of the pinion 14,

the tube 11 will be raised or lowered to. project or withdraw the wick.

The tubes 2 and 10 are provided with air inlet openings 16 with a wall 17 between the. tubes, the tube, 11 being slotted toallow for its vertical movement past the wall 17. The tube 10'has a removable cap 18 in its lower "end to adapt the burner for a center draft lamp. Spiders 19 are provided within the tube 10 supporting a rod 20 on the upper end of which I arrange disks 21 and 22 spaced from one another and from the upper end of the tube 10 and acting as Spreaders. The ring 6 is provided with an upwardly extending flange 23, which is inclosed by a cone 2 L having an inwardly turned upper wall 25, terminating in a vertical flange 26; This inwardly turned wall and flange are within the lower portion of the mantle 27 when it is placed on the burner and serves to prevent side draft and the contact of the flame of the lamp with the mantle. The space inclosed by the wall 25 on theupper portion of the cone forms a mixing chamber 28 where the air currents and the vapor mingle and where ignition occurs. Between the spreader 22 and the flange 26 a narrow throat or passage 29 is provided.

Above the wick 3 and mounted onthe tube 2 and inclosing the upper portion of the wick is an adjustable rmg 30 having an annular recess or depression 31 therein, which receives the burned portions of the wick when it is drawn down into the tube.

toward the base of the lamp and a narrow passage 32 is formed between the wall at and the ring 30 through which the air passes into the mixing chamber. Thearea of this passage can be increased or decreased by moving the ring 30 vertically on the tube 2 and I am thus able to regulate very nicely the volume of air passing between the ring and the cone and supplying oxygen to. the

wick flame. I regard this adjustable ring as an important feature of my invention.

In Fig. 5' I have illustrated a modified form of'cone, which I will designate by the numeral 33. This cone has abase adapted to fit on the flange 23 and has straight walls to the top of the cone, instead of being inwardly curved as in the cone shown in Fig. 1. This cone 33 is designed for use Without the mantle or when the lamp is used as an ordinary kerosene burner. It will be found particularly serviceable when a mantle is broken and cannot, for any reason, be replaced immediately and it is desirable to use the lamp without the mantle.

I claim as my invention 1. A lamp burner comprising, a'cup and ring mountedthereon and'having a vertical band or flange inclosing the opening therein, inner and outer wick tubes and a wick located between them, a ring mounted on the upper end of said outer wick tube, a cone having a lower edge to clasp said band and terminating with the lower portion of said band, said cone being held by frictional engagement with said band and capable of vertical adjustment thereon, the wall of said cone being spaced from the ring of the outer wick tube and the vertical adjustment of the cone determinin the width of this space, and theto'p of said cone having a central opening therein, substantially as. described.

2. A lamp burner com rising a cup and ring mounted thereon and provided with a vertical band inclosing the opening therein, inner and outer wick tubes and a wick between them, a ring mounted on the upper end of said outer wick tube, a cone having a lower edge adapted to clasp said band and supported by its frictional engagement therewith, the walls of said cone converging from its lower edge and a ring carried by the said outer tube, an annular space being formed between said ring and the wall of said cone, the upper portion of said cone being inwardly turned to form an annular shoulder terminating in an upwardly projecting flange inclosing the opening provided in the top of said cone, said cone being removable from its supporting band, for the purpose specified.

In witness whereof, I have hereunto set my hand this 23d day of November 1908.

BENJAMIN F. FOWLER.

Witnesses:

RICHARD PAUL, J. A. BYINGTON. 

